He's a former investment banker who has spent 30 years amassing a wealth of sports memorabilia, estimated to be worth $30 million, in a 37,000-foot warehouse near downtown Los Angeles. It is a museum of treasures — with usually just one visitor.

"Primarily, it is open to me," Cypres tells CNBC. "I come every day." Though the collection is normally closed to the public, you can get a rare look on an upcoming episode of CNBC's "Secret Lives of the Super Rich."

Cypres was first interested in memorabilia from the New York Yankees baseball team and expanded his collecting from there. "I was born in the Bronx, near Yankee stadium," he explains on "Secret Lives of the Super Rich."

But for fans of the Los Angeles Dodgers, who will compete against the Houston Astros in Los Angeles in the World Series on Tuesday, Cypres's collection is sure to impress.

CNBC | Secret Lives of the Super Rich

Jackie Robinson's jersey.

The single most valuable item in Cypres's collection, according to Dave Hunt, a sports memorabilia expert, is a Dodgers jersey game-worn by Jackie Robinson, which could fetch $2 million in an open auction. The Dodgers, originally headquartered in New York as the Brooklyn Dodgers, went west to become the Los Angeles Dodgers in 1957.

CNBC | Secret Lives of the Super Rich

Babe Ruth's coaching uniform.

Cypres also has a Dodgers uniform worn by baseball legend Babe Ruth while coaching the team in 1938. According to Hunt, the uniform could now be worth $500,000.

The collector has an entire room dedicated to Ruth, who was best known for his performance with the Boston Red Sox and the New York Yankees. Cypres's Babe Ruth cache also includes a fur coat and a shotgun once owned by the famed player.

CNBC | Secret Lives of the Super Rich

Babe Ruth's fur coat and shot gun.

In total, the collection of Babe Ruth history could be worth over $1 million.

Also among his collection, Cypres has 20 World Series trophies, as well as a rare 1909 baseball card for Pittsburgh Pirate shortstop Honus Wagner, estimated to be worth between $300,000 and $500,000, according to "Secret Lives of the Super Rich."

CNBC | Secret Lives of the Super Rich

Honus Wagner baseball card.

The upcoming World Series is an opportunity for Cypres — a chance for more history to be made: "To a collector like myself, there is always tomorrow," he says.